Cellular Respiration Virtual Lab PDF Details

The Cellular Respiration Virtual Lab form provides a unique opportunity to explore the vital processes that sustain life on Earth, particularly the carbon dioxide-oxygen balance critical to both plants and animals. Engaging students in the dynamic interplay between photosynthesis and cellular respiration, this form guides them through an experiment using snails and Elodea, an aquatic plant, to visually examine how carbon dioxide cycles through a biological system. With the objective clearly stated, the form outlines a step-by-step procedure, beginning with crafting a research question, moving through exploration and hypothesis formulation, and culminating in experimental execution and analysis. The included materials, such as Bromthymol Blue, serve as indicators of carbon dioxide levels, changing color to reflect the concentration in the water. Students are tasked with predicting and observing the outcomes of different setups—varying the combinations of snails and Elodea under controlled conditions—to draw conclusions about the interconnectedness of organisms within ecosystems. Through this hands-on virtual lab accessible via a provided webpage, learners are not only introduced to scientific inquiry and experimental variables but are also encouraged to draw inferences and apply their findings to real-world ecological considerations.

QuestionAnswer
Form NameCellular Respiration Virtual Lab
Form Length4 pages
Fillable?No
Fillable fields0
Avg. time to fill out1 min
Other namescarbon transfer through snails and elodea virtual lab answer key, cellular respiration virtual lab answer key pdf, virtual cellular respiration lab, photosynthesis virtual lab answer key

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Name ______________________________________________ Date _____________________ Period ______________

Cellular Respiration Virtual Lab

Carbon Transfer Through Snails and Elodea

Background:

All organisms are dependent on a healthy carbon dioxide-oxygen balance. Photosynthesis and

cellular respiration are key processes in maintaining this balance. Plants, through the process of photosynthesis, use energy absorbed from sunlight, water, and carbon dioxide to produce

sugars and oxygen. Animals and plants, through the process of cellular respiration, use oxygen and sugars to produce carbon dioxide, water, and the energy needed to maintain life.

Purpose:

To determine how carbon dioxide cycles through a biological system by performing the Carbon Transfer Through Snails and Elodea virtual experiment found on this webpage: http://www.classzone.com/cz/books/bio_07/resources/htmls/virtual_labs/virtualLabs.html

Procedure: Follow the steps to the lab given on the screen until you complete all seven (7) steps. You will need to fill in the lab notebook as you go, but you will only be graded on what you put on this assignment sheet.

1.Read through the problem tab. Create your own question for what you are investigating in this experiment.

a.Problem (in question form):

2.Explore the lab to learn what is available to you in your investigation. You must click on each item in the checklist. Describe the materials you will be using in this lab.

a.What is Bromthymol Blue? Why is the BTB in the beaker green?

b.If snails use lungs to breathe, you can conclude that they release which gas into their environment as a result of respiration?

c.If Elodea is an aquatic plant, you can conclude that it releases which gas into its environment as a result of photosynthesis?

d.What is the purpose of the growth light?

e.What is the purpose of the test tube rack cover?

f.Draw the picture seen on the CO2 O2 Cycle poster.

g.If no carbon dioxide is present in your test tube it will be a ____________ color. If a medium amount of CO2 is present, your test tube will be a _______________ color. If a large amount of CO2 is present, your test tube will be __________________.

3.Hypothesis:

Explain how carbon dioxide (CO2) cycles in aquarium water through snails and Elodea.

If_____I add a snail and elodea to a test tube with bromthymol blue______

then_______________________________________________________________________

___________________________________________________________________________

because____________________________________________________________________

___________________________________________________________________________

4.The independent variable in an experiment is the variable which will be altered by you, the scientist. In the case of this experiment, the independent variable will be the number of snails and/or number of elodea plants in each test tube.

a. Identify the dependent variable(what you, the scientist, will measure) in this experiment:

5.Data/Results:

You will be using 8 test tubes for this experiment. Fill your test tubes and perform the experiment according to the data chart found below.

First Test Tube Rack – Placed under the growth light:

Test Tube

Independent

Beginning

Color

Color

with BTB

Variables

Color

Prediction

Result

 

 

 

 

 

TUBE # 1 (CONTROL)

NO SNAILS, NO ELODEA

GREEN

 

 

 

 

 

 

 

TUBE #2

2 SNAILS

GREEN

 

 

 

 

 

 

 

TUBE #3

2 ELODEA

GREEN

 

 

TUBE #4

2 SNAILS, 2 ELODEA

GREEN

Second Test Tube Rack – Placed under the test tube cover:

Test Tube

Independent

Beginning

Color

Color

with BTB

Variables

Color

Prediction

Result

 

 

 

 

 

TUBE # 1 (CONTROL)

NO SNAILS, NO ELODEA

GREEN

 

 

 

 

 

 

 

TUBE #2

2 SNAILS

GREEN

 

 

 

 

 

 

 

TUBE #3

2 ELODEA

GREEN

 

 

 

 

 

 

 

TUBE #4

2 SNAILS, 2 ELODEA

GREEN

 

 

 

 

 

 

 

6.Conclusions:

Complete the following sentences.

a.In the test tubes which contained only snails….

b.In the test tubes which contained only Elodea under the light….

c.In the test tubes which contained only Elodea in the dark…..

d.In the test tubes which contained both snails and Elodea under the light….

Discussion:

1)Conclude. What is the relationship between snails and Elodea?

2)Analyze. Why did the color of the Bromthymol Blue (BTB) solution change in certain test tubes?

3)Analyze. What was the importance of a control in your experiment? What would you conclude if the color of the solution in the control changed?

4)Infer. When you began the experiment, was there CO2 in the water? In the test tubes that contained Elodea, where did the CO2 go?

5)Infer. Which gas did the snails release? What observation supports this inference?

6) Apply. Based on the results of your experiment, explain why you need to add the Elodea to your snail aquarium.

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carbon transfer through snails and elodea virtual lab worksheet answers fields to complete

Inside the area f Draw the picture seen on the CO, If no carbon dioxide is present in, and CO is present your test tube will enter the information that the software demands you to do.

step 2 to completing carbon transfer through snails and elodea virtual lab worksheet answers

You have to emphasize the significant details within the CO is present your test tube will, test tube will be, Hypothesis, Explain how carbon dioxide CO, IfI add a snail and elodea to a, then, and because area.

Entering details in carbon transfer through snails and elodea virtual lab worksheet answers stage 3

The field The independent variable in an, and Identify the dependent is where you can put all sides' rights and responsibilities.

carbon transfer through snails and elodea virtual lab worksheet answers The independent variable in an, and Identify the dependent fields to complete

Finalize by reading these fields and typing in the suitable data: Test Tube with BTB, Independent Variables, Beginning Color, Color Prediction, Color Result, Tube control, No snails No Elodea, Green, Tube, snails, Green, Tube, Elodea, Green, and Tube.

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